When I was required to debug automated fuel payment message problems in the early 80's (similar to bank ATM's), using a scope and traces to find an SDLC sequence error, I thought surely the developers of SDLC and NRZI are sitting in padded rooms somewhere.
No disrespect intended, NRZI is (IMHO) an eloquent solution, but wading through reams of trace output to find intermittent discrepancies in network traffic was mind-numbing. -----Original Message----- From: Gerhard Postpischil Sent: Thursday, January 12, 2012 2:21 PM To: [email protected] Subject: Re: Interesting observation On 1/12/2012 9:12 AM, McKown, John wrote:
Whatever. I did put in a<grin> to imply that I was just kidding around. I use the word "underscore" simply because more people understand that to be the _ than if I used the phrase "break character". It is nice to use the proper word.
Right! For some of us, a break "character" is a string of ten or more one bits on an asynchronous transmission line <G> Gerhard Postpischil Bradford, VT
